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2 – General Description
Fibre Channel Ports
59021-05 A 2-5
2.2.1
Small Form-Factor Pluggable (SFP) Transceivers
An SFP transceiver, like the one shown in Figure 2-5, converts electrical signals to
and from optical laser signals to transmit and receive data. SFP transceivers plug
into the ports; duplex fiber optic cables plug into the transceivers which then
connect to the devices. A port is capable of transmitting at 1 Gbps or 2 Gbps;
however, the transceiver must be capable of 2 Gbps for the port to deliver at that
rate.
The SFP transceivers are hot swappable. This means that you can remove or
install an SFP transceiver while the switch is operating without harming the switch
or the transceiver. However, communication with the connected device will be
interrupted. Refer to Section 6 Removal/Replacement for information about
installing and removing SFP optical transceivers.
Figure 2-5. SFP Transceiver
2.2.2
Port LEDs
Each data port has its own Logged-In LED and Activity LED as shown in
Figure 2-6. The Logged-In LED indicates whether the port and its connected
device are logged into the fabric, or if it is connected to another switch and they
are segmented. The Activity LED indicates the frequency at which the port
receives or transmits frames.
Figure 2-6. Port LEDs
Logged-In LED
(Green)
Activity LED
(Amber)